From Phoenix5's Prostate Cancer Glossary Main Glossary   ·   All Entries One Page       Abbreviations Only   ·   Phoenix5 Main Menu ± Synonyms: margin of error Definition: Symbol meaning plus or minus or to express a range, e.g., if you were to write how far away a location is, you could write it as 100 miles ± 20, which would mean you believe it to be 100 but the distance could be anywhere between 80 and 120 miles. Main Glossary   ·   All Entries One Page       Abbreviations Only   ·   Phoenix5 Main Menu or select another letter #s   A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  WXYZ Definitions are provided for education only and are not medical advice. Created exclusively for Phoenix5. © 2002 Phoenix5. Put the Web's largest interactive prostate cancer glossary on your hard drive and look up words when you are off-line. Click here for information.